448509493 has 8 divisors (see below), whose sum is σ = 454257440. Its totient is φ = 442797840.

The previous prime is 448509491. The next prime is 448509511. The reversal of 448509493 is 394905844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 448509493 - 2¹ = 448509491 is a prime.

It is a super-2 number, since 2×448509493² = 402321530622234098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448509491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16246 + ... + 34072.

It is an arithmetic number, because the mean of its divisors is an integer number (56782180).

Almost surely, 2^448509493 is an apocalyptic number.

It is an amenable number.

448509493 is a deficient number, since it is larger than the sum of its proper divisors (5747947).

448509493 is a wasteful number, since it uses less digits than its factorization.

448509493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18147.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 448509493 is about 21178.0427093724. The cubic root of 448509493 is about 765.4624301960.

The spelling of 448509493 in words is "four hundred forty-eight million, five hundred nine thousand, four hundred ninety-three".